does Kotlin have some kind of index type? for example, I want to pass a List, and an index into that List. I could pass just an Int as the index, but it's possible that is outside the bounds of the list. I was wondering if there was some kind of type-safe way to tie the two together?

Hmm, sounds like a job for a

List

? They are indexed by nature and if you need “empty” places, allow `null`able types.

that's not quite what I want. Normally I'd pass just the sublist that I'm interested in, or just the element, but in this case, I need to know where in the list I am, and have access to the whole list

You might be interested in

list.getOrNull(index)

. It returns null if the index in out of bounds

yeah, that seems like what I need. Thanks